Systems and methods for detecting welded contacts in an electromagnetic switch system
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United States of America Patent
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Feb 13, 2024
Grant Date -
Mar 30, 2023
app pub date -
Sep 27, 2021
filing date -
Sep 27, 2021
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Abstract
A non-transitory, computer-readable medium may include instructions executable by at least one processor in a computing device to cause the processor to perform operations that include transmitting, to a first power source, a command to provide power to a coil of a switching device with a fixed current profile. The operations also include receiving one or more voltage measurements associated with the coil during a period of time, determining whether the voltage measurements associated with the coil indicate that one or more movable contacts of the switching device are at least partially welded to one or more contacts of an electric circuit, and transmitting an additional command to a second power source to disconnect a current to the coil in response to determining that the voltage measurements indicate that the movable contacts of the switching device are at least partially welded to the contacts of the electric circuit.
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